Atmospheric
concentrations of inorganic pollutants (NO2, SO2 and
ozone) were measured at three different sampling sites in Eskişehir. Samples
were collected between 25th of March and 8th of April
2016 by using passive sampling method. During two-week sampling study, each week was divided to three sub-periods
to investigate weekday and weekend differences of the pollutant concentrations.
One-time vehicle counts during morning,
noon and evening hours for both weekday and weekend periods were inspected. The
highest NO2 concentrations were measured at the sampling site having
urban, traffic and residential characteristics. Positive relationship between
NO2 concentrations and traffic density was observed. Reverse trend
was determined for ozone. Ozone concentrations were higher at the sampling site
far from the city center. Spatial variations of SO2 concentrations
were similar to those of NO2. Weekday NO2 concentrations
were higher than weekend concentrations while higher ozone concentrations were
observed in weekend. Weekend and weekday SO2 concentrations
were quite similar at all sampling sites. Beside spatial variations, vertical
variations of each pollutant were also investigated. NO2
concentrations decreased with the elevation and reverse case was observed for ozone with increasing concentrations at the same elevation range. SO2 concentrations increased with
the elevation due to chimney gas emissions.
Primary Language | English |
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Subjects | Engineering |
Journal Section | Articles |
Authors | |
Publication Date | June 30, 2018 |
Published in Issue | Year 2018 Volume: 19 Issue: 2 |